4. Females of childbearing potential (FCBP) must have a negative pregnancy test at
Screening and Baseline. FCBP who engage in activity in which conception is possible
must use 2 forms of contraception as described by the Study Doctor while on study
medication and for at least 28 days after taking the last dose of study medication

5. Male subjects (including those who have had a vasectomy) who engage in activity in
which conception is possible must use barrier contraception (latex condom or any
nonlatex condom NOT made out of natural [animal] membrane [eg, polyurethane]) while
on study medication and for a least 28 days after the last dose of study medication.

Exclusion Criteria:

1. Other than psoriasis, history of any clinically significant (as determined by the
Investigator) or other major uncontrolled disease.

2. Pregnant or breast feeding

3. History of allergy to any component of the study drug

4. Hepatitis B surface antigen positive at Screening

5. Anti-hepatitis C antibody positive at Screening

6. Active tuberculosis (TB) or a history of incompletely treated TB

7. Clinically significant abnormality on 12-Lead ECG at Screening

8. Clinically significant abnormal chest x-ray

9. History of positive human immunodeficiency virus (HIV), or have congenital or
acquired immunodeficiency

10. Active substance abuse or a history of substance abuse within 6 months prior to
Screening

12. Malignancy or history of malignancy (except for treated [ie, cured] basal cell or
squamous cell in situ skin carcinomas and treated [ie, cured] cervical
intraepithelial neoplasia [CIN] or carcinoma in situ of the cervix with no evidence
of recurrence within the previous 5 years)

13. Psoriasis flare or rebound within 4 weeks prior to Screening

14. Evidence of skin conditions that would interfere with clinical assessments

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